{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9853472","patent":{"patent_number":"US-9853472","title":"Secondary battery charging device, method of charging in secondary battery charging device, photovoltaic generator, method of power generation in photovoltaic generator, photovoltaic-charged secondary battery system, electronic device, and electrical vehicle","assignee":null,"inventors":[],"filing_date":"2012-09-07T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H02J"],"num_claims":19,"abstract":"A battery charging device includes a battery pack including a plurality of battery cells connected in series, and a control unit. The control unit is configured to change a series connection of the battery cells in response to a variation in output voltage of a solar battery."},"analysis":{"summary":"The patent titled \"Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle\" introduces a transformative approach to solar battery charging. At its core, this innovation describes a battery charging device equipped with a control unit that intelligently reconfigures the series connection of battery cells within a pack in real-time.\n\nThe primary problem this patent solves is the inherent inefficiency and instability of charging secondary batteries from variable solar power sources. Traditional systems struggle to maintain optimal charging conditions when the output voltage of a solar panel fluctuates due to changing light intensity or weather. This leads to energy loss, slower charging, and accelerated battery degradation.\n\nThe key technical approach involves a sophisticated control unit that continuously monitors the solar battery's output voltage. In response to these variations, it dynamically adjusts the effective series voltage of the connected battery pack by switching individual cells or groups of cells into or out of the series circuit. This adaptive matching ensures that the battery pack always presents an optimal load to the solar generator, maximizing power transfer and minimizing conversion losses.\n\nThe business value and applications of this technology are extensive. It promises significantly improved charging efficiency and extended lifespan for secondary batteries in a wide range of solar-powered applications. This includes consumer electronic devices (smartphones, laptops), electric vehicles (EVs), and various photovoltaic-charged systems used in residential, commercial, and off-grid scenarios. By making solar charging more reliable and efficient, this innovation enhances product performance and reduces operational costs.\n\nFrom a market opportunity perspective, this patent addresses a critical need in the rapidly expanding renewable energy and electric vehicle sectors. As reliance on solar power grows, demand for intelligent, adaptive energy storage solutions will surge. This technology positions itself as a foundational component for next-generation battery management systems, offering a competitive advantage to manufacturers and solution providers seeking to optimize solar energy utilization and enhance battery performance.","layman_explanation":"## Layman's Explanation: The 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' Patent\n\n### What Problem Does This Solve?\nImagine trying to fill a bucket with water. If you have a tiny trickle, you want a small opening to catch it all. If you have a powerful hose, you need a big opening to avoid splashing and waste. Now, think of solar panels as that water source and your device's battery as the bucket. Solar panels, unlike a steady hose, provide a constantly changing 'flow' of electricity depending on how sunny it is. Traditional battery chargers are like buckets with a fixed opening – they're great for a specific flow, but inefficient for trickles or gushes. This means when the sun isn't perfect, your solar charger either works slowly, inefficiently, or not at all, wasting valuable energy and potentially damaging your battery over time. This inefficiency is a major bottleneck for making solar power truly reliable for everything from your phone to an electric car.\n\n### How Does It Work?\nThis groundbreaking patent, \"Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle,\" introduces a 'smart' element to the battery charging process. Instead of a fixed-opening bucket, this technology gives the battery's charging system a brain. This brain, a 'control unit,' constantly monitors how much electricity the solar panel is currently producing. Based on this real-time information, it can dynamically reconfigure the internal connections of the battery cells. Think of it like having a set of modular LEGO blocks inside your battery. If the solar panel is only producing a little power (a trickle), the control unit might connect fewer LEGOs in a row, making it easier for that small amount of power to fill them up efficiently. If the sun is beaming (a gush), it connects more LEGOs in a row, allowing the battery to absorb the high power without overload. This adaptive matching ensures the battery always presents the 'perfect opening' to the solar panel, maximizing energy transfer and minimizing waste.\n\n### Why Does This Matter?\nThis innovation is a game-changer for several reasons. Firstly, it significantly boosts the efficiency of solar charging. Instead of losing 20-30% of potential energy due to voltage mismatches, this system ensures more of the sun's power makes it into your battery. This means faster charging times for your devices and electric vehicles. Secondly, by optimizing the charging process, it extends the lifespan of your secondary batteries. Batteries degrade faster when charged inefficiently or under stressful conditions. This patent's intelligent management reduces that stress, leading to fewer replacements and lower long-term costs. For electric vehicle manufacturers, this means potentially longer range from integrated solar roofs or faster charging from dedicated solar stations. For electronics companies, it means more reliable and longer-lasting solar-powered gadgets. This technology offers a clear competitive advantage in markets increasingly focused on sustainability and performance, providing a robust return on investment through improved product quality and reduced operational expenses.\n\n### What's Next?\nThis patent lays the groundwork for a new generation of smart, self-optimizing solar-powered devices. We can expect to see this technology integrated into mainstream electric vehicles, making 'solar-charged' a truly meaningful feature. Portable power banks and off-grid solutions will become far more reliable and efficient. As battery technology continues to evolve, this adaptive charging method will ensure that new chemistries can be efficiently paired with renewable sources. Companies that adopt this early will be at the forefront of the sustainable energy revolution, driving market adoption and setting new standards for energy efficiency and battery longevity.","technical_analysis":"The patent \"Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle\" describes a sophisticated system for optimizing the charging of secondary batteries from photovoltaic (PV) sources. The core innovation lies in its adaptive battery management, specifically the dynamic reconfiguration of battery cell series connections.\n\n**Technical Architecture:**\nThe system comprises a photovoltaic generator (solar battery), a secondary battery charging device, and a control unit. The secondary battery charging device includes a battery pack, which itself consists of a plurality of individual battery cells. These cells are interconnected via a switching matrix, allowing for their series configuration to be altered. The control unit is the central intelligence, interfacing with both the PV generator and the battery pack.\n\n**Implementation Details:**\nThe battery pack is not a static series arrangement. Instead, it features internal switching elements (e.g., solid-state relays, MOSFETs, or IGBTs) that can selectively include or bypass individual battery cells or groups of cells from the main series string. This creates a variable-voltage battery pack. For instance, if a pack has 'N' cells, the control unit could configure it to behave as if it has N, N-1, N-2... cells in series, effectively changing its nominal voltage and impedance.\n\n**Algorithm Specifics:**\nThe control unit's algorithm continuously monitors the output voltage (V_pv) of the solar battery. This monitoring can be augmented with current (I_pv) and power (P_pv) measurements to infer the Maximum Power Point (MPP) of the PV array. Simultaneously, the control unit monitors the state of charge (SOC), individual cell voltages, and temperature of the battery cells within the pack. Based on these inputs, a decision-making algorithm determines the optimal series configuration for the battery pack. The objective function for this algorithm would typically involve:\n1.  **MPPT Matching:** Adjusting the battery pack's effective series voltage to draw maximum power from the PV array at its current MPP.\n2.  **Battery Health:** Ensuring that individual cells are charged within their safe voltage and current limits, preventing overcharge or deep discharge.\n3.  **Cell Balancing:** Potentially incorporating a cell balancing mechanism by strategically bypassing or including cells to equalize their SOC over time.\n\nWhen V_pv drops (e.g., due to cloud cover), the control unit would select a configuration with fewer cells in series, presenting a lower voltage target to the PV array. This allows the PV array to operate closer to its MPP at reduced irradiance, maximizing power transfer. Conversely, when V_pv is high, more cells can be brought into series. The switching process needs to be rapid and seamless to avoid power interruptions or transient voltage spikes.\n\n**Integration Patterns:**\nThe system is designed to be integrated into various electronic devices and electrical vehicles. This implies standardized communication protocols between the control unit, the PV generator, and the host device's power management system. The control unit might function as a smart Battery Management System (BMS) with added adaptive capabilities, or it could be a dedicated charging controller communicating with a separate BMS.\n\n**Performance Characteristics:**\nThis approach offers several performance advantages:\n*   **Higher Charging Efficiency:** Direct voltage matching minimizes losses associated with conventional DC-DC converters, especially under varying input conditions.\n*   **Extended Battery Lifespan:** By maintaining optimal charging voltages and potentially improving cell balancing, the technology reduces stress on individual cells, leading to longer cycle and calendar life.\n*   **Improved Adaptability and Reliability:** The system can efficiently charge across a wider range of solar irradiance levels and environmental conditions, enhancing the overall reliability of solar-powered devices.\n*   **Reduced Thermal Stress:** More efficient power transfer means less dissipated heat within the charging circuitry and battery, contributing to better thermal management.\n\n**Code-Level Implications:**\nImplementing the control unit would involve embedded systems programming. Firmware would need to manage sensor readings, execute complex MPPT and battery management algorithms, and control the switching matrix with high precision. Real-time operating systems (RTOS) might be employed to handle multiple concurrent tasks like voltage sensing, switching, and communication. The algorithms would likely involve fuzzy logic, PID control, or machine learning techniques for optimal dynamic response and predictive adaptation. This technical approach marks a significant advancement in adaptive power electronics and intelligent battery management for renewable energy applications.","business_analysis":"The patent \"Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle\" introduces a pivotal technology with substantial business implications across multiple high-growth sectors. This innovation directly addresses a critical pain point in renewable energy adoption: the efficient and reliable storage of intermittent solar power.\n\n**Market Opportunity Size:**\nThe global markets for renewable energy, electric vehicles (EVs), and smart electronics are experiencing exponential growth. The solar energy market alone is projected to reach trillions of dollars in the coming decades, with energy storage being a key enabler. The EV market is also expanding rapidly, driving demand for advanced battery and charging technologies. This patent targets the intersection of these markets, offering solutions for enhanced solar charging in consumer electronics, residential solar storage, and particularly, EV charging infrastructure. The total addressable market is therefore vast, encompassing billions of devices and millions of vehicles globally.\n\n**Competitive Advantages:**\nThis technology provides a significant competitive edge by offering superior charging efficiency and extending battery lifespan compared to conventional solar charging systems. Companies integrating this innovation can differentiate their products through:\n1.  **Enhanced Performance:** Devices and vehicles will charge faster and more reliably from solar sources.\n2.  **Lower Total Cost of Ownership (TCO):** Longer battery life reduces replacement costs and environmental impact.\n3.  **Increased Market Appeal:** Products boasting 'adaptive solar charging' or 'intelligent energy management' will resonate with environmentally conscious and tech-savvy consumers.\n4.  **Reduced System Complexity:** By integrating adaptive logic into the battery pack, the need for bulky and less efficient external power conditioning units can be reduced.\n\n**Revenue Potential:**\nRevenue streams could be generated through several avenues:\n*   **Licensing:** Patent holders could license the technology to battery manufacturers, EV companies, and electronics brands.\n*   **Component Sales:** Developing and selling the specialized control units and reconfigurable battery packs.\n*   **Integrated Solutions:** Offering complete solar charging systems, including PV generators, adaptive chargers, and battery storage.\n*   **Software/Firmware:** Monetizing the sophisticated control algorithms as part of a proprietary Battery Management System (BMS).\n\n**Business Models:**\nPotential business models include:\n*   **B2B Licensing Model:** Partnering with major OEMs in automotive, consumer electronics, and renewable energy to integrate the technology into their product lines.\n*   **Value-Added Manufacturer:** Producing and supplying the core adaptive charging modules to system integrators.\n*   **Subscription Services:** Offering advanced monitoring and optimization services for large-scale deployments based on the data collected by the intelligent control units.\n\n**Strategic Positioning:**\nThis patent positions its adopters as leaders in sustainable energy innovation. By solving a fundamental efficiency problem, it enables a more seamless and effective transition to solar-powered ecosystems. Companies leveraging this technology can establish themselves as pioneers in 'smart energy' and 'adaptive power management,' attracting investment and top talent. It also provides a strong intellectual property barrier against competitors relying on less efficient, traditional charging methods.\n\n**ROI Projections:**\nEarly adopters and licensees could see substantial ROI through:\n*   **Increased Sales:** Due to superior product performance and market differentiation.\n*   **Reduced Warranty Claims:** From extended battery life and improved reliability.\n*   **Cost Savings:** Through more efficient energy utilization and potentially smaller PV array requirements for the same energy yield.\n*   **New Market Penetration:** Opening up opportunities in regions or applications where solar charging was previously less viable due to efficiency concerns. The long-term impact on the lifetime value of products and systems powered by this technology is expected to be highly favorable, driving significant returns.","faqs":[{"answer":"The 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' is a groundbreaking patent (US-9853472) that describes an innovative system for charging secondary batteries, particularly from solar power sources. At its core, this patent introduces a battery charging device that includes a battery pack with multiple cells connected in series, and a sophisticated control unit.\n\nThe key innovation lies in the control unit's ability to dynamically change the series connection of these battery cells. This means the battery pack can intelligently adapt its electrical configuration in real-time, responding to variations in the output voltage of a solar battery (photovoltaic generator).\n\nThis adaptive capability ensures that the charging process is always optimized, maximizing the efficiency of energy transfer from the solar panel to the battery. It represents a significant advancement over traditional fixed-configuration charging systems, promising enhanced performance and longevity for solar-powered devices and electric vehicles. The patent covers not just the device but also the methods of charging and power generation within such systems.","question":"What is 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle'?"},{"answer":"This innovative patent works by enabling the battery pack itself to adapt to the fluctuating output of a solar panel. Here's a simplified breakdown:\n\n1.  **Monitoring Solar Output:** A central 'control unit' continuously monitors the voltage produced by the solar battery (photovoltaic generator). Solar panel voltage can vary significantly with changes in sunlight intensity, temperature, or shading.\n\n2.  **Dynamic Cell Reconfiguration:** The battery pack is composed of several individual battery cells connected in series. Unlike conventional packs where this series connection is fixed, this system's control unit can dynamically alter how many cells are actively connected in series. It achieves this using an internal switching mechanism, effectively shortening or lengthening the series string of cells.\n\n3.  **Optimal Voltage Matching:** If the solar panel's output voltage is low (e.g., on a cloudy day), the control unit can reduce the number of series-connected cells in the battery pack. This lowers the effective voltage of the battery pack, making it easier for the low-voltage solar panel to efficiently push power into it. Conversely, if the solar output voltage is high, more cells can be brought into series to absorb the higher voltage efficiently without stressing individual cells.\n\nThis continuous, intelligent adaptation ensures that the battery pack always presents an optimal load to the solar panel, maximizing power transfer, minimizing energy loss, and maintaining healthy charging conditions for the battery cells. This adaptive strategy is far more efficient than relying solely on external voltage converters.","question":"How does 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' work?"},{"answer":"The 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' patent primarily solves the problem of inefficient and unstable charging of secondary batteries from variable solar power sources. Solar panels produce electricity whose voltage and current fluctuate significantly with environmental conditions like sunlight intensity, cloud cover, and temperature. \n\nTraditional battery charging systems often struggle with this variability because battery packs typically have a fixed voltage requirement. This mismatch leads to several issues:\n\n1.  **Energy Loss:** When the solar panel's output voltage doesn't perfectly match the battery's requirements, energy is lost during conversion, reducing the overall efficiency of solar energy capture.\n2.  **Slow Charging:** Under suboptimal conditions, charging can become very slow or even cease, especially when solar output is low.\n3.  **Reduced Battery Lifespan:** Inconsistent or inefficient charging can stress battery cells, leading to accelerated degradation, reduced capacity over time, and a shorter overall battery lifespan.\n4.  **System Instability:** Fluctuations can cause instability in power delivery, impacting the reliability of devices relying on solar power.\n\nBy enabling dynamic adaptation of the battery pack, this invention overcomes these limitations, making solar charging more efficient, reliable, and beneficial for battery health. This is crucial for advancing renewable energy integration.","question":"What problem does 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' solve?"},{"answer":"The patent data provided indicates that the inventors and assignee information for 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' (US-9853472) is not specified in this particular context. \n\nTypically, patent documents list the names of the individual inventors who contributed to the conception of the invention. The 'Assignee' refers to the entity (often a company or university) to whom the patent rights have been legally transferred or assigned. This entity is usually the owner of the patent. While the specific names are not provided in this abstract, the innovation itself stems from expert research and development in the field of power electronics and renewable energy storage. \n\nTo find the exact inventors and assignee, one would typically refer to the full patent document available through patent databases like the USPTO or Google Patents, using the patent number US-9853472. This information is critical for understanding the origin and ownership of the intellectual property.","question":"Who invented 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle'?"},{"answer":"The 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' offers several significant benefits that enhance the performance and sustainability of solar-powered systems:\n\n1.  **Maximized Charging Efficiency:** By dynamically matching the battery pack's configuration to the solar panel's output voltage, the system minimizes energy losses during conversion. This means more of the harvested solar energy is successfully stored in the battery, leading to faster charging times and less wasted power.\n\n2.  **Extended Battery Lifespan:** Optimal charging conditions reduce stress on individual battery cells, preventing issues like overcharge, undercharge, or excessive heat buildup. This contributes to a significantly longer cycle life and calendar life for secondary batteries, reducing replacement costs and environmental impact.\n\n3.  **Enhanced Adaptability and Reliability:** The system can efficiently charge across a wider range of solar irradiance levels and environmental conditions, making solar-powered devices more robust and reliable. Whether it's a bright sunny day or partly cloudy, the system maintains high performance.\n\n4.  **Versatile Application:** The technology is applicable across a broad spectrum of devices and systems, including portable electronic devices, electric vehicles, and various photovoltaic-charged systems for residential, commercial, or off-grid use, enhancing their sustainability and performance.\n\nThese benefits collectively make solar energy a more viable and attractive power source, fostering greater adoption of renewable energy technologies and improving the overall user experience for solar-powered products.","question":"What are the key benefits of 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle'?"},{"answer":"The 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' patent distinguishes itself from prior art by fundamentally changing *how* the battery interacts with the solar charging source. \n\nPrior art primarily relies on two main approaches:\n\n1.  **Simple Regulators:** These offer basic voltage control but are highly inefficient, wasting substantial energy as heat.\n2.  **MPPT Charge Controllers with DC-DC Converters:** These are more sophisticated, using algorithms to find the solar panel's Maximum Power Point (MPP) and then converting that power to a fixed voltage suitable for the battery. While better, they still incur conversion losses (typically 5-15%) and treat the battery pack as a static load with a fixed series configuration.\n\nThis patent, however, introduces **dynamic battery cell reconfiguration**. Instead of solely adjusting the *source* (solar panel output) to match a *fixed* battery, this invention allows the *battery pack itself* to adapt its effective voltage to match the solar panel's instantaneous output. The control unit within the charging device can actively change the number of battery cells connected in series. This means the battery can dynamically present a lower or higher voltage target to the solar panel, optimizing power transfer directly, often reducing the reliance on, or significantly improving the efficiency of, external DC-DC conversion. This active, intelligent adaptation of the load (battery) is the key differentiator, leading to higher overall efficiency and better battery health compared to passive or fixed-load prior art solutions.","question":"How is 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' different from prior art?"},{"answer":"The 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' patent is poised to significantly impact several key industries:\n\n1.  **Renewable Energy Sector:** This is perhaps the most direct impact. The patent will enhance the efficiency and reliability of all solar-powered systems, from residential rooftop installations to large-scale solar farms. It improves the performance of energy storage solutions crucial for grid stability and off-grid applications.\n\n2.  **Electric Vehicle (EV) Industry:** For electric vehicles, this technology could revolutionize charging. EVs with integrated solar panels (e.g., on roofs or bodywork) could achieve far more efficient charging, extending range and reducing reliance on traditional charging infrastructure. It also enables more efficient charging from dedicated solar EV charging stations.\n\n3.  **Consumer Electronics:** Devices like smartphones, laptops, tablets, drones, and portable power banks that incorporate solar charging will benefit immensely. Users will experience faster, more consistent charging and longer battery lifespans, making these devices more practical and truly self-sufficient.\n\n4.  **Battery Manufacturing & Management Systems (BMS):** Battery manufacturers and BMS developers will find this patent critical for designing next-generation battery packs. The adaptive cell reconfiguration could become a standard feature, leading to more intelligent and durable battery solutions.\n\n5.  **Off-Grid and Remote Power Solutions:** For applications in remote areas, disaster relief, or military operations where grid power is unavailable, this patent offers a robust solution for maximizing power harvest from limited solar resources, ensuring critical systems remain operational. The innovation fosters a more efficient and sustainable future across these vital sectors.","question":"What industries will 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' impact?"},{"answer":"The patent 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' (US-9853472) has the following key dates:\n\n*   **Filing Date:** September 7, 2012\n*   **Publication Date (Granted):** December 26, 2017\n\nThe filing date marks when the initial patent application was submitted to the patent office, establishing the priority date for the invention. The publication date, also referred to as the grant date for issued patents, is when the patent was officially granted and published by the United States Patent and Trademark Office (USPTO). This means the patent has been thoroughly examined and deemed to meet the criteria for patentability, granting its owner exclusive rights to the invention for a specified period, typically 20 years from the filing date.","question":"When was 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' filed/granted?"},{"answer":"The commercial applications of the 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' are vast and span multiple high-growth markets:\n\n1.  **Electric Vehicles (EVs):** This technology can be integrated into solar roofs or body panels of EVs, allowing for more efficient and faster charging directly from sunlight, thereby extending driving range and reducing reliance on grid power. It also applies to charging stations that utilize solar energy.\n\n2.  **Portable Electronic Devices:** Manufacturers of smartphones, laptops, tablets, drones, and portable power banks can incorporate this adaptive charging for significantly improved solar charging performance, making devices more truly self-sufficient and attractive to eco-conscious consumers.\n\n3.  **Residential and Commercial Solar-Plus-Storage Systems:** For homes and businesses with solar panels and battery storage, this patent enables more efficient energy capture and storage, optimizing self-consumption, reducing electricity bills, and enhancing energy independence.\n\n4.  **Off-Grid Power Solutions:** In remote cabins, agricultural sensors, telecommunications towers, or emergency backup systems, this technology ensures maximum energy harvest from limited solar resources, providing robust and reliable power where grid access is scarce.\n\n5.  **Industrial and IoT Devices:** Solar-powered industrial sensors, smart city infrastructure, and other Internet of Things (IoT) devices can benefit from extended battery life and consistent power supply, reducing maintenance costs and improving operational reliability. The commercial viability stems from the enhanced efficiency, reliability, and longevity it brings to solar-powered products.","question":"What are the commercial applications of 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle'?"},{"answer":"The 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' patent lays a strong foundation for several exciting future developments in smart energy technology:\n\n1.  **Integration with AI and Machine Learning:** Future iterations could incorporate AI and ML algorithms to predict solar output variations, optimize charging profiles based on user behavior or grid demand, and proactively manage battery health, leading to even greater efficiency and longevity.\n\n2.  **Advanced Cell Balancing and Diagnostics:** The dynamic reconfiguration capability could be further leveraged for more sophisticated active cell balancing strategies and real-time, predictive battery diagnostics, enhancing overall pack performance and safety.\n\n3.  **Modularity and Scalability:** Expect the technology to become more modular, allowing seamless integration into diverse battery chemistries and pack sizes, from micro-devices to large-scale grid storage solutions. This will facilitate wider adoption and customization.\n\n4.  **Bidirectional Power Flow:** While focused on charging, the principles of dynamic cell reconfiguration could potentially be extended to optimize power discharge, enabling more efficient V2G (Vehicle-to-Grid) or V2H (Vehicle-to-Home) applications where EVs can feed power back into the grid or home.\n\n5.  **Enhanced Thermal Management:** More efficient power transfer inherently reduces heat generation. Future developments might integrate advanced thermal management systems that work in conjunction with the adaptive charging to ensure optimal operating temperatures under all conditions, further extending battery life. These advancements will solidify the patent's role as a cornerstone for intelligent, sustainable energy ecosystems.","question":"What are the future developments expected for 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle'?"}],"topics":["secondary battery charging device","photovoltaic generator","solar battery system","electric vehicle charging","electronic device charging","efficient","conversion","storage"],"tech_cluster":null},"seo":{"title":"Solar Battery Charging Device - US-9853472 Patent Analysis","description":"Discover the 'Secondary Battery Charging Device, Method of Charging in Secondary Battery Charging Device, Photovoltaic Generator, Method of Power Generation in Photovoltaic Generator, Photovoltaic-charged Secondary Battery System, Electronic Device, and Electrical Vehicle' patent. Learn how dynamic cell reconfiguration boosts solar charging efficiency and extends battery life for EVs, electronics, and more.","keywords":["secondary battery charging device","photovoltaic generator","solar battery system","electric vehicle charging","electronic device charging","battery cell reconfiguration","adaptive charging","renewable energy patent","energy storage innovation","US-9853472","patent US-9853472","solar power efficiency","battery management system","smart charging technology"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9853472","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9853472","citation_suggestion":"Patentable. \"Secondary battery charging device, method of charging in secondary battery charging device, photovoltaic generator, method of power generation in photovoltaic generator, photovoltaic-charged secondary battery system, electronic device, and electrical vehicle\" (US-9853472). https://patentable.app/patents/US-9853472","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9853472","json":"https://patentable.app/api/llm-context/US-9853472","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:19:59.154Z"}